Large-scale events like concerts and conferences are exhilarating experiences for attendees. However, behind the scenes, there lies a monumental task: cleaning up afterwards. From the debris left in the wake of thousands of people to the challenges of maintaining sanitation, cleaning after such events requires precision, efficiency, and a keen eye for detail.

Indeed, cleaning after large-scale events is a multifaceted process that requires careful planning. Fortunately, there are commercial cleaning companies like Crewcare that you can rely on. With a competent, expertly trained team members and industry-grade equipment, Crewcare can provide high-quality cleaning services that include post-event deep cleaning. This way, you’ll be ready to host another great event that’s sure to please the goers.

Here's a more detailed look into the steps involved in post-event cleaning:

Trash Removal

One of the biggest tasks in cleaning large-scale events, especially ones where people are allowed to bring in food and drinks, is trash removal. To help with this, it’s best to be proactive. Provide ample trash bins and strategically place them throughout the venue to encourage attendees to dispose of their waste properly.

After the event, assign teams to handle different areas of the venue, including seating areas, concession stands, and outdoor spaces, to ensure systematic trash collection. Use heavy-duty trash bags and carts to transport collected waste to designated disposal areas. Finally, sort recyclable materials from general waste to promote environmental sustainability.

Sweeping and Vacuuming

After taking out the trash, the next step is to remove loose dirt, dust, and debris from floors and other surfaces. For this, professional cleaners use industrial-grade sweepers and vacuums to do the job as quickly and as efficiently as possible.

Pay special attention to high-traffic areas and spots near food and beverage service areas, where spills and messes are more likely to occur. Every so often, check vacuum bags and filters as needed so they can be emptied, cleaned, or replaced as needed to maintain optimal cleaning performance.

Mopping and Surface Cleaning

Depending on the venue of the event, you may encounter various types of surfaces and materials. Select appropriate cleaning solutions accordingly, especially for those that need additional care like hardwood or laminate flooring.

To effectively remove dirt and grime without leaving streaks or residue behind, use microfiber mops and cloths. If the space has tables, chairs, countertops, and other similar commonly used or frequently touched surfaces, clean and sanitise to minimise the spread of germs and bacteria.

Restroom Maintenance

Throughout the event, conduct regular checks of restrooms to monitor cleanliness and restock essential supplies, such as toilet paper, soap, and paper towels. Afterwards, perform thorough cleaning and disinfection of toilets, sinks, mirrors, and other restroom fixtures using appropriate cleaning agents.

It’s also crucial to address any plumbing issues, such as clogged toilets or sinks, promptly to ensure the continued functionality of restroom facilities.

Stain Removal

For venues that use plenty of fabrics like carpets, upholstery, and drapes, use specialised products and cleaning techniques to remove stains. Remember to blot stains with clean cloths or paper towels to absorb excess moisture before applying cleaning solutions. Also, test cleaning products in inconspicuous areas to ensure compatibility with the material and avoid causing further damage.

It’s also crucial to mop up liquid spills on hard porous surfaces like untreated concrete and hardwood. This is both to minimise the absorption of liquids that can cause cracking and warping, and also to prevent dark colours from becoming permanent stains.

Outdoor Cleanup

To clean an event venue’s outdoor premises, focus on getting rid of litter and debris from areas surrounding like parking lots, sidewalks, and green spaces. Use rakes, brooms, and leaf blowers to clear leaves, dirt, and other debris from outdoor surfaces. Then, dispose of collected outdoor waste in designated receptacles or arrange for proper disposal through waste management services.

Final Inspections

After all cleaning tasks are completed, inspect and clean event equipment, such as stages, sound systems, and lighting fixtures, to remove dust, dirt, and other residues. Make sure to test the equipment as well to identify any issues or malfunctions that may require repair or maintenance. Afterwards, store the equipment properly in their designated storage areas to protect them from damage and ensure it remains in good condition for future use.

Lastly, conduct a comprehensive walkthrough of the venue to assess the cleanliness and condition of all areas. Address any missed spots or areas that require additional cleaning or touch-up, and then document cleaning activities. Take note of any maintenance or repair needs for follow-up by venue management or maintenance staff.

The Challenges of Large-Scale Events Cleaning

While the cleaning process may seem straightforward, it's not without its challenges. Some of these include

  • time constraints in venues with tight turnaround times between events
  • volume of waste
  • variety of surfaces
  • safety issues, such as crowding, heights, and hazardous materials
  • environmental impact

Both organisers and the cleaning crew hired to do the job must take these factors into account to ensure a successful event and seamless cleaning.


Post-event cleanup, especially for large affairs, is a complex and demanding task, requiring coordination, diligence, and a commitment to excellence. By addressing the unique challenges and following a systematic approach, cleaning crews ensure that venues are left spotless, ready to host the next unforgettable event.